Chris Pine wears an unidentified watch

Early in Wonder Woman, Diana notices the small round watch Steve Trevor carries and asks what it is. He tells her it is a watch, that his father gave it to him, that it tells him when to eat, sleep, wake, and work. "You let this little thing tell you what to do?" she asks. Chris Pine plays Trevor, an American pilot and spy who crashes into the sea off Themyscira in 1918, in the last days of the First World War, and talks his way back into the war with an Amazon beside him.

The watch is an open-faced pocket watch: a light dial with a small seconds register, a winding bow at twelve o'clock, the case darkened to gunmetal. Trevor does not keep it in a pocket. He wears it lashed to his wrist, the field fix this exact war made ordinary, when a pocket watch proved useless to a man under fire and soldiers strapped theirs to the back of the hand. The First World War is what moved the watch off the waistcoat and onto the wrist, and Trevor carries the change mid-stride, an old movement pressed into the new position.

No maker has ever been confirmed. The only public attempt to name it is a 2017 comment on a watch blog, left by a collector who said his own antique Swiss watch looked identical, and the studio has never named the prop. Trevor presses it into Diana's hand before he takes a plane loaded with poison gas up over the line and blows it apart, and the timepiece that told one man when to sleep and when to work outlives him by a hundred years: in the film's present-day frame, it is the piece of him she still keeps.